摘要
通过分析城市轨道交通无线通信系统的现状和目前方案存在的问题,提出使用TD-LTE宽带集群技术承载轨道交通综合业务,并给出设计方案架构。通过与目前技术的对比,得出TD-LTE方案技术上的优势,并对车地无线网络多业务融合中关键的TD-LTE需求进行分析。从传输等级、传输时延和丢包率等指标入手,对TD-LTE技术应用于CBTC车地通信的可行性进行分析,得出结论:TD-LTE方案具备统一承载轨道交通综合业务的能力,应用在轨道交通行业具备较大可行性。
This paper introduces the present situation of the wireless communication system of urban rail transit and the existing problems of the current scheme,and proposes the use of TD- LTE broadband cluster technology integrated services with the scheme architecture given. the advantages of TD- LTE scheme are given by comparison with the present technology,and the key TD- LTE requirement in the multi- service integration of the train- ground wireless network is analyzed. From the transmission level,transmission delay and packet loss rate,the feasibility of the application of the TD- LTE technology in the train- ground communication of CBTC is discussed. It is concluded that the TD- LTE scheme is capable of the integrated services of urban rail transit.
出处
《电子科技》
2016年第7期120-123,共4页
Electronic Science and Technology
